The charcoal canisters are 4" open face canisters. They consist of a metal canister
filled with activated charcoal that is held in place by a wire mesh screen and spring
clip. The radon gas and some of the progeny, if present in the air, attach to the
charcoal surface. The canister is sealed at the end of the testing period, and
returned to the laboratory for processing and analysis. For counting, the sealed
canister is placed in a sodium iodide counting system for ten minutes. After analysis,
the gamma counts are converted to radon gas concentrations. The exposure period
of our charcoal canister consists of a minimum of 48 hours (2 days) to
a maximum exposure period of 144 hours (6 days).
Due to licensing, cannot be used in West Virginia. There is an additional $9.50 charge
for tests done in the State of New Jersey, and a $3.00 additional fee for the State
of New York. NJ Home Inspectors who are licensed cannot buy unless they are
affiliated with RAdata's lab.
These test kits can only be used for individual homeowner use in a residence. Not for
use in any other type of building, i.e, commercial, apartment, school, or daycare.
Bulk quantity: Bulk or HUD pricing - Call our office.